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Finding the Fourth Proportional to 11,887.52, 17,828.40 and 4,958.24

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Solution

The fourth proportional to 11,887.52, 17,828.40 and 4,958.24 is: 7,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.52 : 17,828.40 = 4,958.24 : x
  2. Step 2: Convert to fraction form
    11,887.52/17,828.40 = 4,958.24/x
  3. Step 3: Cross multiply
    11,887.52x = 17,828.40 × 4,958.24
  4. Step 4: Simplify right side
    11,887.52x = 88,397,486.02
  5. Step 5: Solve for x
    x = 88,397,486.02/11,887.52
  6. Step 6: Final answer
    x = 7,436.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.